}
	defer os.RemoveAll(file)

	// Check if file is given.
	if _, err := readDir(path.Join(file, "mydir")); err != errFileNotFound {
		t.Fatalf("expected = %s, got: %s", errFileNotFound, err)
	}

	// Only valid for linux.
	if runtime.GOOS == "linux" {
		permDir := path.Join(os.TempDir(), "perm-dir")
		if err := os.MkdirAll(permDir, os.FileMode(0o200)); err != nil {
			t.Fatal(err)
		}
		defer os.RemoveAll(permDir)

```Python
q: Union[str, None] = Query(default=None, max_length=50)
```

Cela va valider les données, montrer une erreur claire si ces dernières ne sont pas valides, et documenter le paramètre dans le schéma `OpenAPI` de cette *path operation*.

## Rajouter plus de validation

Vous pouvez aussi rajouter un second paramètre `min_length` :

   * if no streams were processed.
   *
   * @param lastGoodStreamId the last stream ID processed, or zero if no streams were processed.
   * @param errorCode reason for closing the connection.
   * @param debugData only valid for HTTP/2; opaque debug data to send.
   */
  @Throws(IOException::class)
  fun goAway(
    lastGoodStreamId: Int,
    errorCode: ErrorCode,
    debugData: ByteArray,
  ) {
    withLock {

    assertThrows(
        NumberFormatException.class,
        () -> UnsignedLongs.parseUnsignedLong("1234567890abcdef1", 16));
  }

  public void testParseLongThrowsExceptionForInvalidRadix() {
    // Valid radix values are Character.MIN_RADIX to Character.MAX_RADIX, inclusive.
    assertThrows(
        NumberFormatException.class,
        () -> UnsignedLongs.parseUnsignedLong("0", Character.MIN_RADIX - 1));

          shift += 24;
          len += 3;
        } else {
          int codePoint = Character.codePointAt(input, i);
          if (codePoint == c) {
            // not a valid code point; let the JDK handle invalid Unicode
            return hashBytes(input.toString().getBytes(charset));
          }
          i++;
          buffer |= codePointToFourUtf8Bytes(codePoint) << shift;

            }
        }
    }

    /**
     * Validate host name
     */
    private boolean isValidHost(String host) {
        if (host == null || host.isEmpty()) {
            return false;
        }

        // Check for valid hostname or IP address
        // Simple validation - can be enhanced
        if (host.length() > 255) {

        recordNameField.setAccessible(true);
        Name mockRecordName = new Name(mockConfig);
        recordNameField.set(nameQueryResponse, mockRecordName);

        // Prepare a byte array with valid NetBIOS name format
        byte[] src = new byte[100];
        int srcIndex = 0;

        // Start with compressed name pointer (0xC0) to use questionName
        src[srcIndex] = (byte) 0xC0;

```JSON
{
    "detail": [
        {
            "loc": [
                "path",
                "item_id"
            ],
            "msg": "value is not a valid integer",
            "type": "type_error.integer"
        }
    ]
}
```

devido ao parâmetro da rota `item_id` ter um valor `"foo"`, que não é um `int`.

        assertEquals(CrawlerStatus.INITIALIZING, values[0]);
        assertEquals(CrawlerStatus.RUNNING, values[1]);
        assertEquals(CrawlerStatus.DONE, values[2]);
    }

    /**
     * Test valueOf method with valid values
     */
    public void test_valueOf_valid() {
        assertEquals(CrawlerStatus.INITIALIZING, CrawlerStatus.valueOf("INITIALIZING"));
        assertEquals(CrawlerStatus.RUNNING, CrawlerStatus.valueOf("RUNNING"));

            .post("Uncompressed".toRequestBody())
            .gzip()
            .build(),
        ).execute()
    val responseBody = response.body
    assertThat(responseBody.string(), "Expected response body to be valid")
      .isEqualTo("Uncompressed")
    responseBody.close()
    networkLogs
      .assertLogEqual("--> POST $url http/1.1")
      .assertLogEqual("Content-Encoding: gzip")